Die-stock.



J. B. MARTENS.

DIE STOCK.

APPLlCATION FILED FEB. n. I918.

Patented D00. 31, 1918.

2 SHEETS-SHEET ca. mmuma. val-mum u c J. B. MARTENS.

DIE STOCK.

Patented Dec. 31, 1918.

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J OHN' B. MARTENS, OF CLEVELAND, OHIO, ASSIGNCR TO ALBERT H. BATES, F CLEVE- LAND HEIGHTS, OHIO.

DIE-STOCK. I

To all whom'z't may concern) Be it known that I, J N B.- MARTENs, a citizen of the United States residing-at Cleveland; in the county of Cuyahoga and State of Ohio, have invented *a certain new and useful Improvement in Die-Stocks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

The object of this invention is to provide a die stock which shall carry thereon a plurality of standard thread dies midway be-- tween thehandl'es of the stock,-'and,1 to ar-' range on the stock an adjustable pipe'guide,v

shiftable to operative positions opposite r ing adapted to act as a guide for the dilfereither of the dies and-adapted to closely embrace the exteriorof pip's of various diam eters, on which the diesope'rate.

simple, durable, eflicient and easy to operate.

This invention is hereinafter more fully; described in connection with the acco1npanying drawings and the essential characteristlcs are in the summarized claims.

" Inthe drawings, Figure 1 is an end'el'eva-' 7 tion of my -die stock; Fig. 2'is acentral transverse section through the same; Fig. ,3is' a plan of mydie'stok' showinga pipe in position to bethrea'ded; Fig. 4 is an irregular sectionaldetail showing the arrange ment ofithe slide for'the pipe guide; Fig. 5' is a central longitudinalsection through the die stock and Fig. 6 is a plan view of the guide bushing, a portion being broken away for clearness; Figs. 5 and 6 are on a scaleequally spaced apart and each adapted to larger than that of the other figures.

Designating the parts by the use of refer-- ence characters, 1 indicates a hollow frame contracted at the ends and integral with in- .40

' comprise outwardly extending ribs 6, cutwardly turned bosses 3, in axial alinement and threaded to receive the usualtubular handles indicated at' l.

Substantially half of the perimeter of the frame 1 is occupied by standard pipe thread dies 5, and'the guides therefor; The guides away as shown-to engage the outer edges only of the die members, and forming the sides of troughs, the bottoms of which are formed by integral portions 7, of the frame -1. Thedies 5, comprise rectangular blocks closely fitting between the ribs 6 and seating on the members 7 and secured thereto by the usual screws 8,-while screws 9 extending through: bosses its mounting is as follows:

10 provide a slight longi- L Specification of Letters Patent. Patented Dec. 31, 1918. Application filed February 11, 1918. Serial N o. 216,577. I

' tudinal adjustment and hold the dies from receding when in use. The ribs 6 and members 7 comprislng the guide ways for the dies are preferably arranged substantially degrees apart, that is, the axes of the dies and diametrically opposite their respective dies, I prefer to providean adjustable bushent sizes of the pipes which the dies in the frame are designed to act upon. Iarrange this bushing so that it is carried bythe frame and movable around, substantially half of the perimeter of the frame inthe zone of the dies and I provide means for holding the bushing diametrically opposite any onejof the setsof dies.

'A brief description of the bushing and Semi-circular shouldersj12, face inwardly, from opposite sides of a rectangular opening 14, through which a pipe may extend to any of the dies.

'Arcuate-ribs 15, on the bushing sleeve 16,

slidably fit the shoulders 12 and are retained by arcuate strips 17, secured to a shoulder '13,.by screws 19. The bushing 16, has an enlarged disk-like head port on 20, on which are" pivoted a series of triangular jaws 18,

July 5, 1898.

Projections 25, extend outwardly from the jaws into curved slots 26 'in the cover 22, while the pivots 27 extend inwardly from the jaws 18, and closely engage recesses in the head 20. It will be seen that a relative rotation of the cover 22 and head 20 will result in swinging the pivots 25 inwardly or outwardly, moving the jaws from the position shown in solidlines in Fig.6, in-

wardly to engage the pipe indicated MP:

A further movement would bring the jaw into an engagement with the smaller pipe. To clamp'the-cover plate in any position and thus hold the jaws set to act on a given a size of pipe, it is only necessary to provide a screw such as shown at 28 extending through aslot 29 in thehead 20 and into the flange '23. This slot is long enough to permit the desired anovement-W-hile the tightening ofthescrew holds the cover and jaws 18 in any position. A screw indicated at 3O-may 1eXtend through a similar slot in the flange 23 opposite the screw 28 or a plurality of screws-30 may be positioned as desired and permanently set to permit a sliding movei'nent, one screw: preferably the screw QSbeing utilized to tighten-the cover to the head. v

,As a means for clampingthe/adjustable head in any position in its g-uide'opposite any of the dies,l preferyto providenotches- 32 in the inner-edges-ofthestrips 11,7 which notches-may receive tongues :33 on the-sliding blocks 34afitted inrec ess'es in-the bushing v 16 and adapted to ,be'. moved} inwardly to dis engage a the vtongues from; the notches 32; by g 'p'lungers 35. vThese plungershave threaded .v extensions 36engaging the-blocks 84 and are Y *slidable in bosses 38. *Springs '39'n10rmally urgetheplungers-outw-ardly' The plungers extend but a short distancebeyond the pe- 'riphery, ofthehead 20 andlmaybe depressed :bylthe thumb and'finger, to disengage the tongues from thenotches 32,- thus permitting theentire bushing to swing from one posi- F.rom t he foregoing descriptionzit will ;be

seen, that I have provided a-die stockxca'n @i-yingaplurality of standard adjustablepipe .and which vhas a guidebushing quickly adju'stable to the three sizes of the pipes on ,which;the,dies,.carried by:-the stock may act, and also adjustable to larger or smaller sizes of pipe ,ford-ies which may be substituted for the usual. dies; The-device is simple, etlicient and has no partsliable to be broken by dropping of the die stock as all the projecting parts areprote'cted-by integral-or rigid portions of the frame. The dies and bushing are so positioned that the pipe to'abe acted upon is brought-midway between the die stock handles,

' Having thus described by invention, What I claim is: 4

1. In a die stock, the combination ,of a hol- 10w frame, a plurality ofdies carried by thev frame-on"one-sid-e thereof,.fapipe guide membermovabl'y carriedby the frame on theop- I: 6Qposite side'jot the hollow, meansfor holding t in alinement jwithleither of said dies, and

means forvarying the size. of the pipe guide v opening. l

2. Ina die stock, the combination 0t a fra e .a-rla l tyo r test-d e arr y the frame, a pipe guide member shiftably carried by the frame, 'means for clamping said member in'a positionin-alinement with either of said sets of dies, and means for varying the size of the pipe guide openlng without changing said alinement.

pipe acted upon by any of said sets ofdies.

LIn a die stock, the combination of a trameya plurality of sets ofjdies carried vthereby, a pipeguide having asingle boreof variable: size, and'means for sslidablyaca-rry ing the guide on theirame. V

.5. -In a,,d'e'-stock, the col bination.;ofa r ,hollow :fra'me, alinedjhandles at :opposite ends thereof, a plurality of 'idies ,each ar- -ranged midway between the-handles; and an adjustable-bushing 1 movably carried by -the frame and;adapted"toibebroughteinto a'line 590 ,ment with, any oneofsaidkdies. T e 6. .ln'a die stock, the -combination-of' *a frame, a plurality-= of dies carried":thereby, an ,adjustable @pipe' guide bushing; apguide on the frame ,--along which thefbushing is slidable and means for, clam-ping the bushing in a different position1al0ng their-guide sop- :posite either 0f :said dies,

7 In a die stock, the coinbination {Of a frame, a pluralityof dies "carried-thereby, an 7 adjustable pipe guide zzbushing, a guide on the frame j for positioning thei'bush-ing,

.-,.1nea-n s for'c-lamping the bushing indifferent N --positions along the guide opposite (either z-of 40 diesadapted to act onvariousisizes -ofp1 pe,.

said gdies, andE-manuall-y operable members for actuatingqtherclampingmeans.

:8. In a die stock, zthe combrna'tion a hollow frame,;;handles removably secured to of'the frame, aplurality. of sets .of standard dies secured side by side around :one side otthe frame, ;an -arcuate guidewayalongxone side of :the frame, ;an adjustable pipe zguide bushing slidable along said guideway. and adapted to be brought into alinem'ent' with either of said sets of dies, and means' for clamping the bushing in operative position for any of thesets of dies. 7

10; A die stock comprising a hollow frame, axially alined handlesremovably "sepu-red ;-,t, o each end of-the; frame; aiplurality 1 30 of sets of standard dies secured side by side around one side of the frame, an opening in the opposite side of the frame, guideways along each side of the opening, an adjustable pipe guide bushing slidable on said guideways and adapted to be brought into alinement with either of said sets of dies, said guideways having notches, a movable member carried by the bushing engaging said notches for locking it in position, and a depressible plunger carried by the bushing for releasing said locking element.

11. In a die stock, the combination of a frame, a plurality of sets of pipe dies arranged side byside on one side of the frame,

a guide on the frame on its opposite side, and a sleeve member slidably mounted on said guide and adapted to be positioned in registration with any of the sets of dies.

12. In a die stock, the combination of a hollow polygonal frame, a plurality of sets of pipe dies arranged about the frame, an arcuate guide carried by the frame, and a Copies of this patent may be obtained for pipe guide slidably mounted on the arcuate guide and adapted to be positioned in registration= with any of the sets of dies.

13. In a die stock, the combination of a hollow polygonal frame, a plurality of sets of pipe dies arranged about one side of the frame, an arcuate guide carried by the frame on its opposite side, a slidable member mounted insaid guide and having an opening, and means for guiding various sizes of pipe extending through said opening.

14. In a' die stock, the combination of a hollow polygonal frame, a plurality of sets of pipe dies arranged side by side about one side of the frame, an arcuate guide carried by the fra'meon its opposite side, a slidable member mounted in said guide, and a pipe guide having an adjustable throat carried by said member.

In testimony whereof, I hereunto affix my signature.

JOHN B. MARTENS.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

